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What are the steps of the scientific method? |
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Definition
1. Observation 2. Hypothesis 3. Prediction 4. Experiment 5. Analyze Data 6. Communitcate |
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What is the structure of an atom? |
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Definition
1. Proton 2. Neutron 3. Electron 4. Electron Cloud |
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The simplest particle of an element that still retains all of the properties |
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Definition
A subatomic particle. Has a positive charge. Located in the nucleus |
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A subatomic particle. No charge. Located in the nucleus |
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Definition
A subatomic particle. Negative charge. Located outside the nucleus |
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The number of protons in the nucleus of an atom |
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Definition
The total number of protons and neutrons in the nucleus |
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An atom that has the same atomic number as other atoms but a different atomic mass |
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Why do atoms form chemical bonds? |
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Definition
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A group of atoms that are held together by chemical force |
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A substance made up of atoms of two or more different elements joined by chemical bonds |
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Definition
A combination of two or more substances that are not chemically combined |
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What are the characteristics of living things? |
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Definition
1. Organization and cells 2. Response to stimuli 3. Homeostasis 4. Metabolism 5. Growth and Development 6. Reproduction 7. Change Over Time |
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Definition
The attractive force between oppositely charged ions |
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A bond formed when atoms share one or more pairs of electrons |
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Definition
The force of attraction between a hydrogen molecule with a partial positive charge and an atom/molecule with a partial/full negative charge |
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What is the difference between acids and bases? |
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Definition
Acids have more hydronium ions than hydroxide ions. Bases have more hydroxide ions than hydronium ions. |
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What is the most common element in living things? |
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Definition
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What does it mean to be a polar compound? |
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Definition
It means to be a compound whose molecules have a negative charge on one side and a positive charge on the other |
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What are organic compounds? |
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Definition
Organic compounds are compounds made primarily of carbon atoms |
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What is a carbohydrate and what are they used for in the body? |
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Definition
Carbohydrates are organic compounds made up of carbon, hydrogen, and oxygen. Some carbohydrates work as a source of energy while others work as structural material |
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Definition
Sugars (monosaccharides, disaccharides, polysaccharides) |
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What are the three categories of lipids? |
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Definition
1. Fats 2. Steroids 3. Phospholipids |
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Definition
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What are some uses of proteins? |
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Definition
Hair, horns, skin, muscles |
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What can effect enzyme activity? |
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Definition
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What are the three parts of the cell theory? |
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Definition
1. All living organisms are composed of one or more cells 2. Cells are the basic units of structure and function in an organism 3. Cells come only from the reproduction of already existing cells |
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What is the difference between prokaryotic and eukaryotic cells? |
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Definition
Prokaryotes lack a membrane-bound nucleus and membrane-bound organelles |
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What is the difference between plant and animal cells? |
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Definition
Plant cells have a cell wall, chloroplast, chlorophyll, and a central vacuole |
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What is the structure and function of the nucleus? |
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Definition
The nucleus is made up of the nucleolus and nuclear envelope. The nucleus works as the brain of the cell and houses all genetic material |
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List two organelles that play a role in cell movement |
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Definition
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